The LOFAR Two Metre Sky Survey: Deep Fields Data Release 1 -- III. Host-galaxy identifications and value added catalogues

Abstract

We present the source associations, cross-identifications, and multi-wavelength properties of the faint radio source population detected in the deep tier of the LOFAR Two Metre Sky Survey (LoTSS): the LoTSS Deep Fields. The first LoTSS Deep Fields data release consists of deep radio imaging at 150~MHz of the ELAIS-N1, Lockman Hole, and Boötes fields, down to RMS sensitives of around 20, 22, and 32$\mu$Jy\,beam${}^{-1}$, respectively. These fields are some of the best studied extra-galactic fields in the northern sky, with existing deep, wide-area panchromatic photometry from X-ray to infrared wavelengths, covering a total of $\approx$~26~\mbox{deg${}^2$}. We first generated improved multi-wavelength catalogues in ELAIS-N1 and Lockman Hole; combined with the existing catalogue for Boötes, we present forced, matched aperture photometry for over 7.2 million sources across the three fields. We identified multi-wavelength counterparts to the radio detected sources, using a combination of the Likelihood Ratio method and visual classification, which greatly enhances the scientific potential of radio surveys and allows for the characterisation of the photometric redshifts and the physical properties of the host galaxies. The final radio-optical cross-matched catalogue consists of 81\,951 radio-detected sources, with counterparts identified and multi-wavelength properties presented for 79\,820 ($>$97\%) sources. We also examine the properties of the host galaxies, and through stacking analysis find that the radio population with no identified counterpart is likely dominated by AGN at $z\sim 3-4$. This dataset contains one of the largest samples of radio-selected star-forming galaxies and active galactic nuclei (AGN) at these depths, making it ideal for studying the history of star-formation, and the evolution of galaxies and AGN across cosmic time.

arXiv comment34 pages, 14 figures and 14 tables. Accepted for publication in A&A special issue. This paper is part of the 1st data release of the LoTSS Deep Fields. Electronic data catalogues will be made available on journal publication

References in corpus (109)

• Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
• Astropy: A Community Python Package for Astronomy
• Stellar population synthesis at the resolution of 2003
• The Sloan Digital Sky Survey: Technical Summary
• Galactic Stellar and Substellar Initial Mass Function
• Gaia Data Release 2. Summary of the contents and survey properties
• The Gaia mission
• The Dust Content and Opacity of Actively Star-Forming Galaxies
• Binary companions of evolved stars in APOGEE DR14: Search method and catalog of ~5,000 companions
• LSST: from Science Drivers to Reference Design and Anticipated Data Products
• The Infrared Array Camera (IRAC) for the Spitzer Space Telescope
• Correcting for the Effects of Interstellar Extinction
• Herschel Space Observatory - An ESA facility for far-infrared and submillimetre astronomy
• The Spitzer Space Telescope Mission
• LOFAR: The LOw-Frequency ARray
• The UKIRT Infrared Deep Sky Survey (UKIDSS)
• The Galaxy Evolution Explorer: A Space Ultraviolet Survey Mission
• The 2dF Galaxy Redshift Survey: Spectra and redshifts
• The Photodetector Array Camera and Spectrometer (PACS) on the Herschel Space Observatory
• The Herschel-SPIRE instrument and its in-flight performance
• A Highly Consistent Framework for the Evolution of the Star-Forming "Main Sequence" from z~0-6
• Astrophysics Source Code Library
• The Co-Evolution of Galaxies and Supermassive Black Holes: Insights from Surveys of the Contemporary Universe
• The COSMOS2015 Catalog: Exploring the 1<z<6 Universe with half a million galaxies
• The Pan-STARRS1 Photometric System
• Cosmology and Fundamental Physics with the Euclid Satellite
• Radio Properties of Infrared Selected Galaxies in the IRAS 2 Jy Sample
• The Herschel Multi-tiered Extragalactic Survey: HerMES
• The host galaxies of radio-loud AGN: mass dependencies, gas cooling and AGN feedback
• The UKIRT Infrared Deep Sky Survey ZYJHK Photometric System: Passbands and Synthetic Colours
• Gaia Data Release 2: Photometric content and validation
• SWIRE: The SIRTF Wide-area InfraRed Extragalactic Survey
• On the fundamental dichotomy in the local radio-AGN population: accretion, evolution, and host galaxy properties
• The LOFAR Two-metre Sky Survey - I. Survey Description and Preliminary Data Release
• First Data Release of the Hyper Suprime-Cam Subaru Strategic Program
• The LOFAR Two-metre Sky Survey - II. First data release
• The Thirteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-IV Survey MApping Nearby Galaxies at Apache Point Observatory
• The NEWFIRM Medium-band Survey: Photometric Catalogs, Redshifts and the Bimodal Color Distribution of Galaxies out to z~3
• The VLA-COSMOS 3 GHz Large Project: Continuum data and source catalog release
• XMM-Newton observation of the Lockman Hole; I. The X-ray Data
• Ionospheric Calibration of Low Frequency Radio Interferometric Observations using the Peeling Scheme: I. Method Description and First Results
• The Chandra Deep Field North Survey. V. 1 Ms Source Catalogs
• Radio sources in the 6dFGS: Local luminosity functions at 1.4 GHz for star-forming galaxies and radio-loud AGN
• A semi-empirical simulation of the extragalactic radio continuum sky for next generation radio telescopes
• The Evolving Luminosity Function of Red Galaxies
• On the prevalence of radio-loud AGN in brightest cluster galaxies: implications for AGN heating of cooling flows
• The VLA-COSMOS Survey: II. Source Catalog of the Large Project
• Absolute Calibration and Characterization of the Multiband Imaging Photometer for Spitzer. I. The Stellar Calibrator Sample and the 24 micron Calibration
• A sample of radio-loud AGN in the Sloan Digital Sky Survey
• Radio sources in the 2dF Galaxy Redshift Survey - II. Local radio luminosity functions for AGN and star-forming galaxies at 1.4 GHz
• LOFAR 150-MHz observations of the Boötes field: Catalogue and Source Counts
• The LOFAR Two Meter Sky Survey: Deep Fields, I -- Direction-dependent calibration and imaging
• Faceting for direction-dependent spectral deconvolution
• The European Large Area ISO Survey I: Goals, Definition and Observation
• Systematic effects in LOFAR data: A unified calibration strategy
• The Spitzer Deep, Wide-Field Survey
• The IRAC Shallow Survey
• The VLA-COSMOS 3 GHz Large Project: Multiwavelength counterparts and the composition of the faint radio population
• LOFAR/H-ATLAS: The low-frequency radio luminosity - star-formation rate relation
• Red Galaxy Growth and the Halo Occupation Distribution
• The WIRCam Deep Survey I: Counts, colours and mass-functions derived from near-infrared imaging in the CFHTLS deep fields
• Simultaneous Multicolor Detection of Faint Galaxies in the Hubble Deep Field
• The Spitzer Extragalactic Representative Volume Survey (SERVS): survey definition and goals
• Quantifying cosmic variance
• The VLA-COSMOS 3 GHz Large Project: The cosmic star formation history since z~5
• The LOFAR Two-metre Sky Survey (LoTSS) III. First Data Release: optical/IR identifications and value-added catalogue
• Spectroscopic Confirmation of a Massive Red-Sequence-Selected Galaxy Cluster at z = 1.34 in the SpARCS-South Cluster Survey
• Spectroscopic Confirmation of Two Massive Red-Sequence-Selected Galaxy Clusters at z ~ 1.2 in the SpARCS-North Cluster Survey
• XBootes: An X-Ray Survey of the NDWFS Bootes Field - Paper I Overview and Initial Results
• Gaia Data Release 2: processing of the photometric data
• T-PHOT: A new code for PSF-matched, prior-based, multiwavelength extragalactic deconfusion photometry
• The VLA-VIRMOS Deep Field I. Radio observations probing the microJy source population
• The VLA-COSMOS 3~GHz Large Project: Cosmic evolution of radio AGN and implications for radio-mode feedback since z~5
• Connecting the cosmic infrared background to the X-ray background
• VLA 1.4GHz observations of the GOODS-North Field: Data Reduction and Analysis
• The bright-star masks for the HSC-SSP survey
• Deep multi-frequency radio imaging in the Lockman Hole using the GMRT and VLA: I. The nature of the sub-mJy radio population
• Herschel-ATLAS: counterparts from the UV--NIR in the science demonstration phase catalogue
• HELP: XID+, The Probabilistic De-blender for Herschel SPIRE maps
• The Reddest Quasars
• The cosmic evolution of radio-AGN feedback to z=1
• Hypercalibration: A Pan-STARRS1-based recalibration of the Sloan Digital Sky Survey
• Evolution of the Radio Loud Galaxy Population
• A Deep VLA survey at 20cm of the ISO ELAIS survey regions
• RCSLenS: The Red Cluster Sequence Lensing Survey
• GAMA/WiggleZ: The 1.4GHz radio luminosity functions of high- and low-excitation radio galaxies and their redshift evolution to z=0.75
• T-PHOT version 2.0: improved algorithms for background subtraction, local convolution, kernel registration, and new options
• Black hole accretion and host galaxies of obscured quasars in XMM-COSMOS
• Star formation properties of sub-mJy radio sources
• The LOFAR Two-metre Sky Survey IV. First Data Release: Photometric redshifts and rest-frame magnitudes
• The ELAIS Deep X-ray Survey I: Chandra Source Catalogue and First Results
• Discovery of a radio galaxy at z = 5.72
• Multi-wavelength properties of Type 1 and Type 2 AGN Host Galaxies in the Chandra-COSMOS Legacy Survey
• Deep Low-Frequency Radio Observations of the NOAO Bootes Field: I. Data Reduction and Catalog Construction
• The LBT Bootes Field Survey: I. The Rest-frame UV and Luminosity Functions and Clustering of Bright Lyman Break Galaxies at z~3
• A 610-MHz survey of the ELAIS-N1 field with the Giant Metrewave Radio Telescope - Observations, data analysis and source catalogue
• The Likelihood Ratio as a tool for Radio Continuum Surveys with SKA precursor telescopes
• CENSORS: A Combined EIS-NVSS Survey Of Radio Sources. I. Sample definition, radio data and optical identifications
• The discovery of a typical radio galaxy at z = 4.88
• zBootes : z-band Photometry in the NOAO Deep Wide-Field Survey Bootes Field
• A 610-MHz survey of the Lockman Hole with the Giant Metrewave Radio Telescope - I. Observations, data reduction and source catalogue for the central 5 square degrees
• 325-MHz observations of the ELAIS-N1 field using the Giant Metrewave Radio Telescope
• Herschel-ATLAS: VISTA VIKING near-IR counterparts in the Phase 1 GAMA 9h data
• An Application of Multi-band Forced Photometry to One Square Degree of SERVS: Accurate Photometric Redshifts and Implications for Future Science
• A Wide-area GMRT 610~MHz survey of ELAIS N1 field
• The XXL Survey: XXXVI. Evolution and black hole feedback of high-excitation and low-excitation radio galaxies in XXL-S
• The LOFAR Two Metre Sky Survey: Deep Fields. II. The ELAIS-N1 LOFAR deep field
• The LOFAR Two-metre Sky Survey Deep Fields -- Data Release 1: IV. Photometric redshifts and stellar masses
• The XXL Survey : XXVI. Optical and near-infrared identifications of the ATCA 2.1 GHz radio sources in the XXL-S Field

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• Diffuse Radio Emission from Galaxy Clusters in the LOFAR Two-metre Sky Survey Deep Fields
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• The detectability of strong 21 centimetre forest absorbers from the diffuse intergalactic medium in late reionisation models
• A machine learning classifier for LOFAR radio galaxy cross-matching techniques
• Energy balance SED modelling can be effective at high redshifts regardless of UV-FIR offsets
• The LOFAR-eFEDS survey: The incidence of radio and X-ray AGN and the disk-jet connection
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• A novel Bayesian approach for decomposing the radio emission of quasars: I. Modelling the radio excess in red quasars
• Gravitational lensing in LoTSS DR2 -- Extremely faint 144-MHz radio emission from two highly magnified quasars
• Radio source-component association for the LOFAR Two-metre Sky Survey with region-based convolutional neural networks
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• The LOFAR Two Metre Sky Survey Data Release 2: Probabilistic Spectral Source Classifications and Faint Radio Source Demographics
• Relic jet activity in "Hanny's Voorwerp" revealed by the LOFAR Two metre Sky Survey
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• A super-linear "radio-AGN main sequence'' links mean radio-AGN power and galaxy stellar mass since z$\sim$3
• SPARCS-North Wide-field VLBI Survey: Exploring the resolved MicroJy extra-galactic radio source population with EVN+e-MERLIN
• How does the radio enhancement of broad absorption line quasars relate to colour and accretion rate?
• Cosmology from LOFAR Two-metre Sky Survey Data Release 2: Cross-correlation with the cosmic microwave background
• Revisiting the alignment of radio galaxies in the ELAIS-N1 field
• The LOFAR LBA Sky Survey: Deep Fields I. The Boötes Field
• X-ray AGN in Boötes: The lack of growth of the most massive black holes since z=4
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• 1-arcsecond imaging of ELAIS-N1 field at 144MHz using the LoTSS survey with international LOFAR telescope
• Probing the Mpc-scale environment of hyperluminous infrared galaxies at 2<z<4
• A novel Bayesian approach for decomposing the radio emission of quasars: II. Link between quasar radio emission and black hole mass
• LOFAR properties of SILVERRUSH Ly$\alpha$ emitter candidates in the ELAIS-N1 field
• Low-frequency radio spectra of submillimetre galaxies in the Lockman Hole
• A multi-band AGN-SFG classifier for extragalactic radio surveys using machine learning
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• Prospects of a statistical detection of the 21-cm forest and its potential to constrain the thermal state of the neutral IGM during reionization
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• Identifying Radio Active Galactic Nuclei with Machine Learning and Large-Area Surveys
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• MIGHTEE: The dark matter haloes, duty cycle and mechanical feedback from radio-AGN up to $z\sim 2.5$
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• Efficient neutral-IGM inference from noisy 21-cm forest spectra with latent-space U-Net encoding and XGBoost
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